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Which of the following salts is the most basic in aqueous solution?
- Al(CN)3
- CH3COOK
- FeCl3
- Pb(CH3COO)2
Correct answer: CH3COOK
Solution
CH3COOK is the salt of a strong base (KOH) and a weak acid (CH3COOH); its anion hydrolyses to make the solution basic. The others are either acidic (FeCl3) or weak-acid/weak-base salts that are far less basic.
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